He confessed that he and a friend cannibalised another member of their group who died in the extreme cold, say investigators.
The taiga fishing trip has caused headlines around the world: now, the first arrest.
In the most extreme conditions, the unimaginable can happen.
'And I very much hope that the law in Russian is not an empty vessel, and the people in our country are prohibited from eating one another'.
Rescuers vow to find helicopter that vanished in strong winds on 10 October.
A suspected cannibal is to be given a lie detector test this week in a bid to resolve the mysterious case of the fisherman 'eaten by his friends'.
Olga Kurochkina has spoken out after hearing confirmation that cannibalised human remains found in the taiga were those of her husband.
Olga Kurochkina earlier appealed to Vladimir Putin to force the authorities to check if her husband was killed by cannibals.
Olga Kurochkina earlier appealed to Vladimir Putin to force the authorities to check if her husband was killed by cannibals.